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Articles 31 - 60 of 65
Full-Text Articles in Life Sciences
Effects Of Protein Sources On Growth And Hormonal Status Of Weaned Dairy Calves, Christopher Aaron Sissell
Effects Of Protein Sources On Growth And Hormonal Status Of Weaned Dairy Calves, Christopher Aaron Sissell
LSU Master's Theses
Eight Holstein calves approximately 6 months of age (mean BW 185.15 + 16.16 kg) were used in a replicated 4 x 4 Latin Square experiment to study effects of protein sources on performance of weaned dairy calves. Dietary treatments consisted of 16% CP diets with three sources of ruminally undegradable protein (RUP). Experimental diets were corn-silage based, with soybean meal (SBM) as the source of ruminally degradable protein (control) and 3 sources of RUP including heat treated soybean meal (SBM) (SoyPLUS®), animal protein blend (PRO-LAK), and extruded-expelled SBM, included at 45% of the dietary CP. The animals were fed their …
An Hedonic Analysis Of Southwestern Louisiana Wetland Prices Using Gis, Baifu Xu
An Hedonic Analysis Of Southwestern Louisiana Wetland Prices Using Gis, Baifu Xu
LSU Master's Theses
Louisiana is the beneficiary of more than 30% of the U.S. coastal wetlands, but the state’s wetland loss accounts for about 90% of the total throughout the continental United States. The Coastal Wetlands Planning, Protection and Restoration Act of 1990 and the $1.9 billion that has recently been dedicated by Congress for coastal restoration activities will certainly aid in restoration efforts. However, these dedicated funds are but a small fraction of the total monies that will be required to maintain/restore Louisiana’s degraded wetlands. Recent estimates suggest restoration activities will cost, at a minimum, about $14 billion. The research, based on …
Psychological Correlates Of Exercise Behavior Among Adolescents, Kevin C. Paul
Psychological Correlates Of Exercise Behavior Among Adolescents, Kevin C. Paul
LSU Master's Theses
According to the 2003 Youth Risk Behavior Surveillance Survey, 33% of youth in grades 9-12 participated in an insufficient amount of vigorous and moderate physical activity (PA), and 11% reported no vigorous and moderate PA. Although researchers have examined the psychological correlates of exercise behavior among youth, limited research investigating moderators of the theories of reasoned action (TRA; Ajzen & Fishbein, 1980) and planned behavior (TPB; Ajzen, 1985) in this population exists. Therefore, the main purpose of this study was to examine socioeconomic status (SES) as a moderator of the psychological correlates of exercise intention and behavior using the TRA/TPB …
Assessing Ethnorelative Pedagogical Preparedness In Pete Programs, Joe W. Burden
Assessing Ethnorelative Pedagogical Preparedness In Pete Programs, Joe W. Burden
LSU Doctoral Dissertations
Previously, multicultural education literature has highlighted the increase of ethnically diverse students' growth in American public K-12 schools (Articles & McClafferty, 1998; Ladson-Billings, 1994). On the other hand, the literature reveals that many teachers are failing to appropriately exhibit culturally relevant pedagogical competence to accommodate the growth of students of color in American schools (NCDTF, 2004). Oftentimes, this contributes to the development of pre-service teachers that lack culturally relevant pedagogical preparation to teach students of color in American K-12 schools (Burden, Hodge, O'Bryant & Harrison, 2004; Ambrosio, Seguin, & Hogan, 2001). Thus, this study sought out to better understand how …
Sensory Characteristics And Optimization Of A Low-Sodium Salt Formulation And Its Food Application, Armen Khachatryan
Sensory Characteristics And Optimization Of A Low-Sodium Salt Formulation And Its Food Application, Armen Khachatryan
LSU Doctoral Dissertations
Excessive consumption of sodium is associated with high blood pressure in people. Reduction of sodium intake and replacement of salt with salt substitutes are an essential component of the primary prevention of hypertension. Potassium chloride is the most widely used salt substitute. However, when used in large amounts, it imparts bitterness and metallic aftertaste. Therefore, bitterness masking agents need to be used in salt substitute formulations. L-Arginine has been reported to have bitterness masking properties. No research has yet been conducted to investigate the effects of KCl and L-Arginine on the perception of saltiness and bitterness in the mixture of …
The Influence Of Controllability On College Women's Efficacy And Attributions In Physical Activity, Julie Franks Gill
The Influence Of Controllability On College Women's Efficacy And Attributions In Physical Activity, Julie Franks Gill
LSU Doctoral Dissertations
There is evidence that individuals’ attributional patterns are important determinants of behavior. Controllability had been identified as an influential dimension of causal attributions. When individuals believe their actions have an effect, or control, on the outcome of an event, they are more likely to engage in a behavior. Contingency of feedback can be used to manipulate perceptions of controllability. The purpose of this study was to investigate the effect of controllability on causal attributions, efficacy, and performance in an exercise setting, using a design that accounts for explanatory styles. It was hypothesized that non-contingent outcomes on an initial task would …
Maximize Muscle Mechanical Output During The Stretch-Shortening Cycle--The Contribution Of Preactivation And Stretch Load, Mianfang Ruan
Maximize Muscle Mechanical Output During The Stretch-Shortening Cycle--The Contribution Of Preactivation And Stretch Load, Mianfang Ruan
LSU Doctoral Dissertations
It is well documented that the stretch-shortening cycle (SSC), the most common muscle behavior, enhances muscle mechanical output. Stretch load and muscle preactivation level have been suggested as the two important factors regulating mechanical output. The purpose of this series studies is to systematically examine influences of the preactivation and the stretch load on muscle mechanical output during SSC. In the First study, a two dimensional lower extremity dynamic model was used to evaluate the influence of the approach on mechanical output. The peak summed power during the push-off phase demonstrated a quadratic trend across heights and appeared to be …
Pathology And Seedling Nutrition Of Spartina Alterniflora (Smooth Cordgrass), Clark Lane Robertson
Pathology And Seedling Nutrition Of Spartina Alterniflora (Smooth Cordgrass), Clark Lane Robertson
LSU Master's Theses
Transplants of Spartina alterniflora Loisel. (smooth cordgrass, Poaceae) are effective in stabilizing and protecting vulnerable coastal wetlands from erosion. However, the expense and labor associated with propagation and transplanting restrict the widespread use of S. alterniflora in coastal restoration and protection projects. As an alternative, seeding of S. alterniflora by aircraft has been proposed as a more useful and economical approach for revegetating denuded marsh sites. However, a period of stalled growth, which lasts for 12 or more weeks, has been observed in smooth cordgrass seedlings, and this increases their susceptibility to being washed away by inundating tides. This stalled …
Reproductive And Metabolic Effects Of Recombinant Equine Leptin On Seasonally Anovulatory Mares, Pamela Boliew Mitcham
Reproductive And Metabolic Effects Of Recombinant Equine Leptin On Seasonally Anovulatory Mares, Pamela Boliew Mitcham
LSU Master's Theses
Mares of poor body condition have low plasma leptin concentrations, while obese mares have the highest concentrations. Leptin is a primary signal of body condition to the brain in other species; therefore, low leptin concentrations in thin mares could contribute to their extended anovulatory period in winter compared to obese mares. The current experiment was designed to determine whether recombinant equine leptin, administered to seasonally anovulatory mares, would induce ovarian activity and ovulation in the winter. Leptin effects on metabolism were also studied. Beginning January 7, leptin-treated mares (n = 9) received daily i.m. injections of 10 mg recombinant equine …
The Effects Of Various Feed Additives On Growth Performance Of Nursery Pigs, Jennifer Tucker
The Effects Of Various Feed Additives On Growth Performance Of Nursery Pigs, Jennifer Tucker
LSU Master's Theses
The objective of this research was to evaluate the effects of various feed additives on growth performance of nursery pigs. An experiment was conducted in which pigs were fed a conventional Phase 1 diet containing: 1) no salmon protein hydrolysate (SPH) or spray-dried porcine plasma (SDPP); 2-3) 1.5% SPH or SDPP; 4-5) 3.0% SPH or SDPP; or 6) 1.5% SPH and 1.5% SDPP. The results of this experiment showed growth performance was unaffected by source or level of protein during any growth phase. Overall gain:feed was greater (P = 0.08) for pigs fed the 1.5% level of protein than for …
Record-Keeping Systems Adoption By Louisiana Dairy Farmers, Elisabeth Grisham
Record-Keeping Systems Adoption By Louisiana Dairy Farmers, Elisabeth Grisham
LSU Master's Theses
Fifty Louisiana dairy farmers were interviewed to gather production amounts, costs of production, management techniques, technologies adopted, and demographic information. These data were used to analyze what record-keeping systems the farmers were adopting and to what extent the systems were being used. Logit, ordered probit, negative binomial regression, OLS regression, and double hurdle models were used to determine adoption and intensity. In this study, age was found to decrease the probability that a farmer would believe their computer was not at all useful and also of limited usefulness, while increasing the probability that a farmer would believe the computer was …
Analyzing The Cost Of Harvesting And The Economic Structure Of Florida Grouper Fishery, I. Cristian Nedelea
Analyzing The Cost Of Harvesting And The Economic Structure Of Florida Grouper Fishery, I. Cristian Nedelea
LSU Master's Theses
This study uses a translog cost function to investigate the technical and economic relationships present among a sample of Florida grouper longline vessels. The existence of jointness-in-inputs and non-separability between inputs and outputs suggests that resource management should be based on multiproduct production theory, and that explicit recognition of the economic interactions among species should be incorporated in any regulatory process. The cross-price elasticities of input demands showed substitution relationships between input pairs, implying that imposed regulation on the single input will be compensated for by increases in the other inputs. Furthermore, model results showed apparently substantial economies of scope, …
Chemical Ecology, Fungal Interactions And Forest Stand Correlations Of The Exotic Asian Ambrosia Beetle, Xylosandrus Crassiusculus (Motschulsky) (Curculionidae), Eric Paul Ott
LSU Master's Theses
Increasing evidence of non-indigenous ambrosia beetles aggressively attacking hosts in their new environment in the United States has led to concern over the potential for damage to urban trees, nurseries, orchards, and forests. A novel technique of flooding host trees was devised to stimulate ambrosia beetle attacks, with ambrosia beetle attraction peaking four days following flooding. In-situ sampling identified significant differences in the composition, quantity and point of release (leaf or bole) of volatiles emitted by the flooded and non-flooded trees. Coupled gas chromatography electroantennographic detection revealed olfactory sensitivity by the ambrosia beetle Xylosandrus crassiusculus (Motschulsky) to 29 of these …
Modeling The Eu-Us Cereal Trade - The Post 'Agenda 2000' Analysis, Sachin Chintawar
Modeling The Eu-Us Cereal Trade - The Post 'Agenda 2000' Analysis, Sachin Chintawar
LSU Master's Theses
Significant changes in attitudes toward farm policy and trade have occurred within the European Union and the United States in the past decade. Trade negotiations under the General Agreement on Tariff and Trade (GATT) specifically the Agreement on Agriculture (AoA) and later under the Doha Round of the World Trade Organization (WTO) have bought about considerable changes in the market structure in the cereals trade. Bilateral trade has further been impacted by the cessation of concession treaties like the Blair House Accord that expired at the end of the 2004 marketing year (WTO). Domestic budget pressures in the United States …
Cryopreservation Of White-Tail Deer Epididymal Sperm For Artificial Insemination, Jesse Ray Saenz
Cryopreservation Of White-Tail Deer Epididymal Sperm For Artificial Insemination, Jesse Ray Saenz
LSU Master's Theses
The ability to cryopreserve epididymal sperm from mature postmortem bucks has long been of interest to both wildlife conservationists and deer ranchers. Increased understanding of the cryobiology of epididymal sperm from a non domestic species, such as White-tail deer, could aid in development of future protocols to assist in the preservation of endangered species. In Experiment I, results showed that after cooling postmortem bull testes for 22 hours, no significant difference was noted between sperm parameters of epididymal sperm collected at room temperature or at a cool enviorment. In Experiment II, it was shown that White-tail deer sperm could be …
Predictors Of Adl Disability In Culturally Diverse Older Adults, Fernanda Holton
Predictors Of Adl Disability In Culturally Diverse Older Adults, Fernanda Holton
LSU Master's Theses
Almost 42% of adults over 65 years of age live with at least one disability. Further, people of lower socioeconomic status and Blacks have greater risks for disability than Whites and individuals at higher socioeconomic status. The consequences of disability include loss of independence, decreased quality of life, increased chances of depression, consumption of health care services, and institutionalization. The purpose of this study was to utilize the disablement process framework to examine the contribution of physical function, dyspnea, and pain to disability in activities-of-daily-living (ADL) in culturally diverse older adults (i.e., diverse according to race, income, and education). Participants …
Quantification Of Muscle Fatigue In Cerebal Palsy And Its Relationship To Impairments And Function, Noelle G. Moreau
Quantification Of Muscle Fatigue In Cerebal Palsy And Its Relationship To Impairments And Function, Noelle G. Moreau
LSU Doctoral Dissertations
Three experiments were designed to explore the measurement of muscle fatigue in people with cerebral palsy (CP). The four aims were to 1) develop a feasible and reliable isokinetic protocol to assess muscle fatigue of the knee flexors and extensors in this population, 2) determine if muscle fatigue of the knee flexors and extensors in people with CP differs from subjects without a motor disorder, 3) determine whether muscle fatigue is related to functional measures of activity and participation, and 4) investigate possible contributing factors of muscle fatigue. Results show that muscle fatigue can be reliably assessed through an isokinetic …
Equine Obesity-Related Hyperleptinemia, Nan Killen Huff
Equine Obesity-Related Hyperleptinemia, Nan Killen Huff
LSU Doctoral Dissertations
Plasma leptin concentrations in obese adult horses have been shown to vary widely, and horses tend to fit into two groups: low leptin (<10 ng/mL) and hyperleptinemic (10 to 50 ng/mL). Observations over time revealed that the hyperleptinemic condition was consistent, possibly indicating a relatively permanent underlying cause. Based on these observations, three experimental approaches were used to further study equine obesity-related hyperleptinemia. The first experiment determined the prevalence of hyperleptinemia among postpartum, lactating mares, evaluated its consequence on their re-breeding success, and investigated correlations between leptin levels in lactating and non-lactating mares. Postpartum mares (n = 198) and non-foaling mares (n = 31) were categorized based on their leptin status: normoleptinemic or hyperleptinemic. Leptin in the lactating mares averaged 4.8 ng/mL, and 11 of the 198 (13%) displayed hyperleptinemia. Leptin in the non-lactating mares averaged 7.5 ng/mL, with 9 mares (29%) displaying hyperleptinemia. Of the 198 lactating mares bred, 81% became pregnant; there was no effect of leptin status on re-breeding success. To study one possible cause for hyperleptinemia in well-fed horses, a second experiment explored polymorphism(s) within exon 2 of the equine leptin gene. The DNA from five hyperleptinemic and five normal mares of high body condition was used to analyze exon 2 of the leptin gene for polymorphisms. Based on the 10 mares tested, there was no polymorphism in exon 2 of the equine leptin gene; therefore, polymorphism is not a likely explanation for the high vs. low leptin difference. The third experiment explored the possible effects of hyperleptinemia on the endocrine and immune systems. Endotoxin was given to mares and geldings to investigate the role and/or regulation of leptin in the pro-inflammatory cytokine response. Of the endpoints measured, only platelet count differed between normal and hyperleptinemic horses. Endotoxin infusion caused the expected pro-inflammatory cytokine and endocrine responses, but leptin status was not a significant factor for any endpoint. It is concluded that hyperleptinemia in mares is not associated with polymorphism in exon 2 of the leptin gene, does not affect re-breeding rates of foaling mares, and does not alter the endotoxin-induced responses of the endocrine and immune systems.
Effect Of Age, Body Condition, Pregnancy And Lactation On Circulating Leptin Concentrations In Beef Cattle, Glen Talmage Gentry, Jr.
Effect Of Age, Body Condition, Pregnancy And Lactation On Circulating Leptin Concentrations In Beef Cattle, Glen Talmage Gentry, Jr.
LSU Doctoral Dissertations
A series of experiments were conducted to evaluate the potential role of leptin in bovine reproduction. In Experiment 1, mean circulating leptin concentrations of postpartum cows were not affected by exogenous dexamethasone treatments. In Experiment 2, mean leptin concentrations were not correlated with female age or body weight but were positively correlated with body condition scores of beef cattle. Leptin concentrations were higher in 1 year old heifers (8.9 ng/ml) compared with 2 year old cows (6.0 ng/ml), but heifer leptin concentrations were not different than 4 to 6 year old cows (8.0 ng/ml) and cows ≥7 years of age …
Analysis Of The Impact Of Fish Imports On Domestic Crawfish Prices And Economic Welfare Using Inverse Demand Systems, Young-Jae Lee
Analysis Of The Impact Of Fish Imports On Domestic Crawfish Prices And Economic Welfare Using Inverse Demand Systems, Young-Jae Lee
LSU Doctoral Dissertations
This study is mainly intended to determine quantitatively the economic effects of crawfish imports on the domestic crawfish industry. Inverse demand systems are used to estimate the price and scale flexibility as an indicator for the effects of imports on crawfish domestic price. A variety of algebraic forms for empirical consumer allocation models have been developed. Economic theory, however, does not provide the necessary fundamental criteria to choose ex ante among the alternative specifications. Bartern (1993) and Brown, Lee, and Seale (1995) examined a family of inverse demand systems, showing that the integrated demand system, in its own right, has …
Assessing Physical Function In Bilateral And Unilateral Total Knee Arthroplasty Patients., Tiina Tuulia Garrison
Assessing Physical Function In Bilateral And Unilateral Total Knee Arthroplasty Patients., Tiina Tuulia Garrison
LSU Doctoral Dissertations
The general objective of this dissertation was to investigate physical function in osteoarthritis (OA) and total knee replacement (TKA) patients. First, a validation study was performed to evaluate the validity of the Continuous Scale Physical Functional Performance (CS-PFP10) test in knee OA awaiting TKA. The CS-PFP10 scores were compared to the Western Ontario and McMaster Universities OA Index (WOMAC), The Knee Society’s Clinical Rating System (KSS), and the Short Form 36-item health survey (SF-36) physical function scores. It was hypothesized that at least moderate associations between the CS-PFP10 test scores and the WOMAC, KSS, and SF-36 scores in TKA candidates …
Investigation On The Antioxidant Capabilities Of Spice Extracts In Inhibition Of Long Chain Polyunsaturated Fatty Acids Oxidation And Cholesterol, Sandeep D. Bhale
Investigation On The Antioxidant Capabilities Of Spice Extracts In Inhibition Of Long Chain Polyunsaturated Fatty Acids Oxidation And Cholesterol, Sandeep D. Bhale
LSU Doctoral Dissertations
Antioxidant capabilities of the spice extract of ginger, oregano, rosemary and turmeric were evaluated by monitoring inhibition of DHA and EPA in a menhaden fish oil model and cholesterol oxidation model system. The spice extracts were mixed with the fish oil at 1, 2.5 and 5 % (w/w) and 1, 2.5 and 5mg (dw) were used in cholesterol study. The temperatures 150oC and 175oC were used for the oxidation study and a 60oC was used for incubation storage. The methanol extracts of all four spices demonstrated significant capability in retaining the DHA and EPA, after subjected to oxidation when compared …
Self-Control Of Learning Multiple Motor Skills, Wilbur Fong Wah Wu
Self-Control Of Learning Multiple Motor Skills, Wilbur Fong Wah Wu
LSU Doctoral Dissertations
Learning is commonly referred to as a “two-way street” between the learner and instructor. Until recently, learning has been studied using a “one-way” approach in which numerous studies have explored learning in situations where the experimenter or instructor shapes the practice environment. A number motor learning studies have shown the effectiveness of the learners’ abilities to control various aspects within their learning environment. Studies on augmented feedback (Chiviacowsky & Wulf, 2002; Janelle, Kim, & Singer, 1995), observational learning (Wulf, Raupach, & Pfeiffer, 2005), and physical assistance devices (Wulf & Toole, 1999) have found that learning is enhanced when individuals are …
Chromosomal Stability And Epigenetic Modifications Of Fibroblast Cells Used For Nuclear Transfer, Angelica Maria Giraldo Gomez
Chromosomal Stability And Epigenetic Modifications Of Fibroblast Cells Used For Nuclear Transfer, Angelica Maria Giraldo Gomez
LSU Doctoral Dissertations
Investigations into the importance of the nuclear integrity of the donor cell prior to nuclear transfer (NT) are limited. In Experiment 1, the proliferative characteristics, chromosomal stability and level of histone phosphorylation in cell lines established by explants and enzymatic dissociation at different population doublings (PDs) were investigated. The cells divided at a constant rate and cell cycle length increased only at the end of the proliferative stage. The level of aneuploidies was high and remained elevated throughout the study independent of the technique used to establish the primary culture. High levels of multinucleated cells and abnormal spindle configurations were …
Effects Of Cryopreservation And Constituents Of Semen Extenders On Mitochondrial Function Of Bull Spermatozoa, Abdulhakeem Hashim Eljarah
Effects Of Cryopreservation And Constituents Of Semen Extenders On Mitochondrial Function Of Bull Spermatozoa, Abdulhakeem Hashim Eljarah
LSU Doctoral Dissertations
This study investigated the effects of semen extender constituents and cryopreservation on bovine spermatozoal mitochondrial function. Three yearling Holstein bulls were used. Two ejaculates per bull were collected and pooled on a weekly basis for five weeks and extended in four treatments: 1) sodium citrate egg yolk extender with antibiotics (lincomycin, spectinomycin, gentamicin and tylosin); 2) ¡°1¡± with glycerol; 3) ¡°2¡± without antibiotics; and 4) ¡°1¡± without antibiotics. Each was divided into portions for analyses before freezing and after cryopreservation. The pre-freeze and thawed semen were transferred to a 37¡ãC water bath, the same assays were performed. In experiment 1, …
Spatial Econometric Analysis Of Agglomeration Economies Associated With The Geographical Distribution Of The U.S. Biotech Industry, Pramod Reddy Sambidi
Spatial Econometric Analysis Of Agglomeration Economies Associated With The Geographical Distribution Of The U.S. Biotech Industry, Pramod Reddy Sambidi
LSU Doctoral Dissertations
This dissertation analyzed spatial agglomeration economies associated with the geographical distribution of the U.S. biotech industry. Three location issues associated with the biotech industry were addressed in the study. The first study utilized a Bayesian spatial tobit model and examined the overall and regional differences in factors affecting the location of the U.S. biotech industry. The second study examined the inter- and intra-industry spatial association of biotech related research and development (R&D) and testing facilities across all contiguous U.S. counties employing a Spatial Two-Stage Least Squares model. Finally, the interdependence between different subsectors of the U.S. biotech industry was analyzed …
Drivers Of Liking And Effects Of Corn Hybrics On Quality Of Corn Tortilla, Jose Andres Herrera Corredor
Drivers Of Liking And Effects Of Corn Hybrics On Quality Of Corn Tortilla, Jose Andres Herrera Corredor
LSU Doctoral Dissertations
Corn tortilla, an ancient staple food of Mexico and Central America, is still the base food in those countries and has also become more popular in other countries with high Hispanic population. However, mechanization of corn tortilla production has modified the original sensory attributes to new standards that meet manufacturer’s requirements. The first part of this study attempted to determine the sensory attributes that drive consumer’s decision on the acceptability and purchase intent of the corn tortilla available in the Mexican market. The findings may help manufacturers to improve the processing of tortilla and develop products with ethnic authenticity. Overall …
Liability, Institutions, And Determinants Of Landowner Access Policies For Fee-Based Recreation On Private Lands, James Emery Henderson
Liability, Institutions, And Determinants Of Landowner Access Policies For Fee-Based Recreation On Private Lands, James Emery Henderson
LSU Doctoral Dissertations
Landowners in the Lower Mississippi Valley or Delta may be willing to consider alternative land uses for some acreage, particularly for marginal agricultural lands. Recreational hunting, fishing, and wildlife watching opportunities on private land for public use may be a possible way to provide income to landowners and restore marginal lands as a contributor to the local economy. Previous studies have identified that landowners often chose not to engage in recreational leasing due to liability concerns. Thus, an institutional change that reduces liability risk to landowners may increase the amount of private land available for public recreation and reduce transaction …
Detection Of West Nile Virus Activity In Male And Female Mosquitoes, And Evaluation Of Host-Utilization Patterns Of Mosquitoes, In East Baton Rouge Parish, Louisiana, Andrew James Mackay
Detection Of West Nile Virus Activity In Male And Female Mosquitoes, And Evaluation Of Host-Utilization Patterns Of Mosquitoes, In East Baton Rouge Parish, Louisiana, Andrew James Mackay
LSU Doctoral Dissertations
ABSTRACT Host utilization patterns of female mosquitoes, and WNV infection rates in male and female mosquitoes, were examined in East Baton Rouge Parish to identify potential vectors of West Nile virus (WNV). A total of 244,374 female mosquitoes were collected between November 2002 and October 2004 and tested by viral isolation. Additionally, 131,896 female mosquitoes were tested by VecTest in 2003, and 167,175 female mosquitoes were tested by RT-PCR in 2004. West Nile virus was isolated from 17 of 36 mosquito species assayed by virus isolation, WNV antigens were detected in 9 of 27 species tested by VecTest, and WNV …
Vascular Function, Physical Performance And Aging, Devon Dobrosielski
Vascular Function, Physical Performance And Aging, Devon Dobrosielski
LSU Doctoral Dissertations
This is a series of three experiments with brachial artery flow-mediated dilation (BAFMD) as the major outcome variable. The first study examined the temporal response of the brachial artery diameter following forearm occlusion in sixteen young (28±8 years) and fifteen older (85±8 years) men. Following release of the pressure cuff there is a significant reduction in brachial diameter compared to baseline, followed by a rapid increase to a PEAK. When comparing the magnitude of the decrease in diameter and the BAFMD between Young and Old, older subjects demonstrated a blunted response. A significant relation was noted between the magnitude of …